uxcell 4mmx16mm Phillips Flat Head Sheet Self Tapping Drilling Screws 50pcs Head Style: Flat Head; Material: Metal; Product Name: Self Tapping Screw Weight: 50g; Package Content: 50(+/-2%) x Self Tapping Screws Thread Size: (d x L1) 4 x 13mm/0.16" x 0.5" (D*L); Drive Type: Phillips Main Color: Bronze Tone; Overall Size: (L) Length: 16mm/0.6" Head Diameter: (D) 8mm/0.3"; Head Height: (k) 3mm/0.12"